It's a wonderful world we live in. For thousands of years
the Earth has given support to all forms of live - homan beings, animals, birds, fishes, insects and plants
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Many species of animals and birds have disappeared. Millions of animals
die every year because man has polluted their natural homes. Besides, every year people cut down more trees, build more roads, and use more land for farming. This leaves fewer jungles, fields and forests for wildlife.
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The country air, once clean and fresh, now may be polluted
by power by stations and factories. Some of our rivers are now empty of fish. And in some rivers you can even see a thick foam caused by chemical waste.